iphone - Setting UIViewGroupOpacity on a View by View Basis

Question

Is it possible to set UIViewGroupOpacity (see documentation) for a single or set of views in an application? Thanks.

Answer 1

您可以通过设置来做到这一点

view.layer.shouldRasterize = YES;
view.layer.rasterizationScale = [UIScreen mainScreen].scale;

在设置视图的 alpha 之前。